Company lists · Data refreshed November 2026

Top 25 Sign language interpretation services worldwide

RevenueBase identified 1,263 company matches for sign language interpretation services worldwide as of November 2026 and tracks 39,911 professional contacts across them, including 5,030 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sign language interpretation services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for sign language interpretation services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
1,263Companies
39,911Contacts tracked
5,030Verified emails
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The 25 largest sign language interpretation services worldwide

Ranked by team size
Top 25 of 1,263 company matches for sign language interpretation services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMonterey, CA, United StatesHQ recorded Nov 5, 202610001+6,855 contacts →

Exact match

“LanguageLine Solutions is the world’s leading language solutions company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchOverland Park, KS, United StatesHQ recorded Nov 5, 2026n/a5,848 contacts →

Exact match

“Language Access, Driven by Innovation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 5, 202610001+2,960 contacts →

Exact match

“Sorenson is a global language services providers, combining assistive technology with human-centric accessibility solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchTucson, NM, United StatesHQ recorded Nov 5, 20261,001-5,0001,576 contacts →

Exact match

“CyraCom is your one-stop shop for top-quality, professional interpretation and translation services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchManchester, United KingdomHQ recorded Nov 5, 2026201-5001,230 contacts →

Exact match

“The world is a better, fairer place when everyone is understood.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchMiraflores, PeruHQ recorded Nov 5, 20261,001-5,000946 contacts →

Exact match

“At Interpretia, we help people understand one another through professional remote interpretation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchSunrise, FL, United StatesHQ recorded Nov 5, 2026n/a759 contacts →

Exact match

“Voyce is a technology driven company, deeply committed to helping people in need facing language barriers, enabling them to easily and quickly communicate and get help.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchPortland, OR, United StatesHQ recorded Nov 5, 2026201-500619 contacts →

Exact match

“We provide on-demand interpreting services via phone and video.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Nov 5, 202651-200556 contacts →

Exact match

“Jeenie is on a mission to end language barriers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSilver Spring, MD, United StatesHQ recorded Nov 5, 2026201-500455 contacts →

Exact match

“Welcome to Ad Astra, a leading global communication solutions and language services brand.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSpring Valley, CA, United StatesHQ recorded Nov 5, 202651-200418 contacts →

Exact match

“Hanna Interpreting is an award-winning, woman and minority-owned small business providing interpretation, translation, and transcription services nationwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchRochdale, United KingdomHQ recorded Nov 5, 202651-200375 contacts →

Exact match

“Language Empire was established in 2001.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 5, 20261,001-5,000291 contacts →

Exact match

“ZP is America's leading provider of Video Relay Services (VRS), Video Remote Interpreting (VRI), CART & Captioning Services, and on-site ASL interpreting - born from the union of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchCharlotte, NC, United StatesHQ recorded Nov 5, 2026n/a288 contacts →

Exact match

“Since 1989, Fluent Language Solutions has helped tens of thousands of clients across the country overcome language barriers with the highest quality interpreting and translating…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchToronto, ON, CanadaHQ recorded Nov 5, 2026201-500279 contacts →

Exact match

“For over 80 years, Canadian Hearing Services (CHS) has played a significant role in supporting and meeting the needs of Deaf and hard of hearing Canadians.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchVienna, VA, United StatesHQ recorded Nov 5, 2026n/a263 contacts →

Exact match

“Liberty Language Services is a small, woman- and minority-owned language services agency headquartered in Tysons Corner, Virginia.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchVirginia Beach, VA, United StatesHQ recorded Nov 5, 2026n/a242 contacts →

Exact match

“For over 25 years, The Language Group (TLG) has helped organizations communicate clearly, confidently, and securely across languages and cultures.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchPortland, OR, United StatesHQ recorded Nov 5, 202651-200213 contacts →

Exact match

“Linguava is a full-service provider of spoken and signed languages specializing in Over the Phone Interpretation, Video Remote Interpretation (VRI), Scheduled Video Interpretation…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLimerick, IrelandHQ recorded Nov 5, 2026n/a187 contacts →

Exact match

“At Translit, we empower people and organisations to overcome the language and communication challenges they face every day.Since 2009, we’ve been dedicated to delivering high…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchSan Diego, FL, United StatesHQ recorded Nov 5, 2026n/a162 contacts →

Exact match

“Interpreters Unlimited (IU) provides solutions wherever language creates a barrier to effective communication.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchFort Worth, TX, United StatesHQ recorded Nov 5, 2026n/a153 contacts →

Exact match

“TIN is a translation and interpreting company that exists to promote communication between and among individuals who speak, write and read different languages.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchZurich, SwitzerlandHQ recorded Nov 5, 202651-200146 contacts →

Exact match

“Interprefy is the world's leading provider of human and AI-powered solutions and services for multilingual events and meetings.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-200140 contacts →

Exact match

“The Language Shop is one of the UK's leading providers of interpreting, translation and examination services to the private and public sector.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchHigh Wycombe, United KingdomHQ recorded Nov 5, 202611-50134 contacts →

Exact match

“Silent Sounds Communications Limited is a private organisation based in High Wycombe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchJacksonville, FL, United StatesHQ recorded Nov 5, 202651-200122 contacts →

Exact match

“We are a full service agency featuring community interpreting & continuing education providing the highest quality sign language interpreters nationwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 1,263 sign language interpretation services worldwide

See the full list, filter by size, metro and specialty, and access 5,030 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sign language interpretation services worldwide at a glance

As of Nov 5, 2026
12.6%Verified-email coverage
31.6Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
777
11-50
295
51-200
116
201-500
33
501-1,000
13
1,001-5,000
7
5,001-10,000
1
10001+
6

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for sign language interpretation services are linked below.
What qualifies
Company records worldwide whose business descriptions match “sign language interpretation services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 5,030 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Sign language interpretation services by location

7 lists · largest first

Every Sign language interpretation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sign language interpretation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sign language interpretation services are there worldwide?

RevenueBase identified 1,263 company matches for sign language interpretation services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Languageline Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most sign language interpretation services?

The United States leads with 491 companies, followed by the United Kingdom (107) and Brazil (76). Every sign language interpretation services list by country and city is linked on this page.

Which city has the most sign language interpretation services?

London leads with 30 company records, followed by Sao Paulo (23) and Austin (16).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,030 professional contacts with verified work emails tracked across these 1,263 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.